Peter Gleick: "...the climate will continue to change in an exponentially increasing and worsening way unless we reduce emissions"

It is time we just said “no.”...Here is the reality: the burning of fossil fuels is the leading contributor of gases that are already changing the planet’s delicate climate, and the climate will continue to change in an exponentially increasing and worsening way unless we reduce emissions....The Keystone XL Pipeline may be just a minor puzzle piece of a far larger picture, but that picture, when all the pieces are combined, is one of potential planetary disaster.